Preparation of Arbitrary Four-Qubit W State with Atomic Ensembles via Rydberg Blockade

The generation of various entangled states is an essential task in quantum information processing. Recently, a scheme （PRA 79, 022304） has been suggested for generating Greenberger-Horne-Zeilinger state and cluster state with atomic ensembles based on the Rydberg blockade. Using similar resources as...

Full description

Saved in:
Bibliographic Details
Published in:Chinese physics letters 2010-04, Vol.27 (4), p.33-36, Article 040307
Main Author: 韩阳 吴春旺 高明 梁林梅 陈平形 李承祖
Format: Article
Language:English
Subjects:
Blocking
Clusters
Entangled states
Noise
Nuclear power generation
Tasks
量子信息处理
量子比特
非最大纠缠态
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The generation of various entangled states is an essential task in quantum information processing. Recently, a scheme （PRA 79, 022304） has been suggested for generating Greenberger-Horne-Zeilinger state and cluster state with atomic ensembles based on the Rydberg blockade. Using similar resources as the earlier scheme, here we propose an experimentally feasible scheme of preparing arbitrary four-qubit W class of maximally and non- maximally entangled states with atomic ensembles in a single step. Moreover, we carefully analyze the realistic noises and predict that four-qubit W states can be produced with high fidelity （F - 0.994） via our scheme.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/4/040307